.header{
    width:980px;
    margin:0 auto 7px;
    line-height: 86px;
    text-align: center;
    font-family: 微软雅黑;
    color:#a5a5a5;   

}
.header h1{
    font-weight:normal;
}
.header strong{
    font-size: 30px;
    font-family: normal;
}
.header em{
    font-style: normal;
    font-size:14px;
}